Offer22.链表中倒数第k个节点/Solution.java
<reponame>codeSu97/SwordToOffer/**
 * Definition for singly-linked list.
 * public class ListNode {
 *     int val;
 *     ListNode next;
 *     ListNode(int x) { val = x; }
 * }
 */
class Solution {
    public ListNode getKthFromEnd(ListNode head, int k) {
        ListNode fast = head;
        ListNode slow = head;
        for (int i = 0; i < k; i++) {
            fast = fast.next;
        }
        while (fast != null) {
            fast = fast.next;
            slow = slow.next;
        }
        return slow;
    }
}